Oops, that page is quite out of date with the current functionality of my tool, as it has been replaced with a version using Web Assembly, which is hosted at https://typegen.vestera.as/ . I guess a redirect would be in order (Edit: Fixed. Old page now redirects.). If you have any issues (e.g. with missing fields) or feedback in general, an issue on https://github.com/evestera/json_typegen/issues would be very welcome.